X0508 4 2023-08-10 false 0001489393 LyondellBasell Industries N.V. LYB 0001782276 Lane Kenneth Todd 4TH FLOOR ONE VINE STREET LONDON X0 W1J 0AH UNITED KINGDOM false true false false EVP, Olefins and Polyolefins false Class A Ordinary Shares 2023-08-10 4 M false 9491.00 89.26 A 81939.5199 D Class A Ordinary Shares 2023-08-10 4 F false 8838.00 100.70 D 73101.5199 D Stock Options (Right to Buy) 89.26 2023-08-10 4 M false 9491.00 0.00 D 2032-02-24 Class A Ordinary Shares 9491.00 18978.00 D Represents a cashless exercise-and-hold, where shares were withheld to cover the option exercise price and anticipated taxes, and the remaining shares are retained by the reporting person. Incudes purchase of 194.368049 shares pursuant to the Issuer's Employee Stock Purchase Plan as follows: 134.33538 shares for $74.727 per share allocated on March 31, 2023 and 60.032669 shares for $82.647 per share allocated on June 30, 2023. Includes 33,827 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 5,878 granted on February 25, 2021 that vest on February 25, 2024; 7,200 granted February 24, 2022 that vest on February 24, 2025; 13,832 granted on May 26, 2022 that vest on May 26, 2024 and 6,917 granted on February 23, 2023 that vest on February 23, 2026. Granted pursuant to the issuer's long-term incentive plan. Award vests as follows: 9,491 vested February 24, 2023, 9,489 vest February 24, 2024 and 9,489 vest February 24, 2025. /s/ Lara A. Mason, Attorney-in-Fact 2023-08-11